If I want to spray river base poly what do i constricted it near or do i involve to adulterate it at adjectives?
Answers: you shouldn't have to shrunken it. Adjust or change nozzle of your sprayer. Do a testing run on a piece of wood.
You said it your self. Water base poly. Use marine to thin. And I would not slight it any way. Thinning it take away strength and hide qualifications. If you have to meagre to spray then use floetrol . Home depot have it and it makes the paint even better.